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參數(shù)資料
| 型號： | DS1233A |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3.3V EconoReset(3.3V Econo復(fù)位芯片) |
| 中文描述： | 3.3V、經(jīng)濟型復(fù)位芯片 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 46K |
| 代理商： | DS1233A |
DS1233A
3.3V EconoReset
DS1233A
022698 1/5
FEATURES
Automatically restarts microprocessor after power
failure
Monitors pushbutton for external override
Internal circuitry debounces pushbutton switch
Maintains reset for 350 ms after V
CC
returns to an in–
tolerance condition or pushbutton released
Accurate 10% or 15% microprocessor 3.3V power
supply monitoring
Reduces need for discrete components
Precision temperature–compensated voltage refer-
ence and voltage sensor
Low–cost TO–92 package or surface mount
SOT–223 package
Internal 5K
pull–up resistor
Operating temperature of –40
°
C to +85
°
C
PIN ASSIGNMENT
DALLAS
DS1233A
Econo
Reset
1
2
3
1
2
3
TO–92 PACKAGE
See Mech. Drawings
Section
1
2
3
4
SOT–223 PACKAGE
See Mech. Drawings
Section
PIN DESCRIPTION
PIN 1
GROUND
PIN 2
RESET
PIN 3
V
CC
PIN 4
GROUND (SOT–223 ONLY)
DESCRIPTION
The DS1233A EconoReset monitors two vital condi-
tions for a microprocessor: power supply and external
override. A precision temperature compensated refer-
ence and comparator circuit are used to monitor the sta-
tus of the power supply (V
CC
). When an out–of–toler-
ance condition is detected, an internal power fail signal
is generated which forces reset to the active state.
When V
CC
returns to an in–tolerance condition, the re-
set signal is kept in the active state for approximately
350 ms to allow the power supply and processor to sta-
bilize. The second function of the DS1233A is pushbut-
ton reset control. The DS1233A debounces a pushbut-
ton closure and will generate a 350 ms reset pulse upon
release.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1233A-10 | 功能描述:監(jiān)控電路 3.3V EconoReset RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1233A-10/T&R | 制造商:Maxim Integrated Products 功能描述:ECONO RESET 3.3V TO-92 (10%)-TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC ECONORESET 3.3V 10% TO92-3 |
| DS1233A-10/T&R | 功能描述:監(jiān)控電路 3.3V EconoReset RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1233A-10+ | 功能描述:監(jiān)控電路 3.3V EconoReset RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1233A-10+T&R | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.88V 50UA 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC ECONORESET 3.3V 10% TO92-3 |
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